2... b8c6  3. f1c4  3... g8f6  4. d2d3  4... h7h6 A flexible move that keeps several plans open: he can play g7-g5 and Bg7, a bold idea that became popular a few years ago; or play g6-Bg7; or simply develop the bishop on its natural square, c5, without White being able to play Bc1-g5.